Cover for loose-leaf books



c. D. TRussELl.

COVER FOR LOOSE LEM-"BOOKSv May l5,r 1928.

Filed Jan. 17, 1928 INVENTOR By Aftorneys,in @nn/bm'. WHW R Patented UNiTsD STATE May i5, 1928.y

CLARENCE ,D.

Appiicaaon ined January 17, 192s.

This invention relates to book covers especially adapted forlooseleaf books lor other forms of temporary binders. Itis part-icularly adapted for such on desks where it is kno hard or shall come be liable to scratch it.

. s Stb books are to be used desirable to insure that metallic portion of the book back in contact with the desk so as to `To accomplish this object 4the book ycover-having a metallic back plate is provided 'with projecting vpads of leather Aoi' the book is opened 'upon a highly polished surface, will other soft material, which, when desk or other keep the :hard

metallic portions out of contact with such surfaces.

Suitable illustrated wherein Figure 1 portion of Fig. Q is generally on the line embodiments ofthe invention are in the accompanying drawings,

' is a perspectiveview of the back a book cover.

a transverse section thereof taken .Q1-e2 in Fig. l1.

Fig. 3 is a fragmentary perspective of a portion of Fig. 2.

Fig. 5 is metal back Fig. 6 is the outer metallic plate.

f Fig.` e is a vertical section through the back, the upper part being t and the lower part on the line fl-fllb in on the line lte,

a rear view of the cover alone, the plate being-removed. a vertical section similar to Fig.

4, but showing a slightlyy different constructhe pads used in In'the drawingsA Figs. y

designates in general the book cover, B an outer back plate which `will preferably be of metal, and C an inner plate preferably of resilient metal,

and

which serves in a loose-leaf book as the means for connecting binding means to plate is commonly formed with inhooked flanges c,

spring turned or them, einb vices, as is clamp the outer plate the rings or other loose-leaf the book. Such an inner c, which, between the binding dewell understood. It is common to back of the cover between the B and inner 'plate C by means of race yieldingly s ifY Lerrici:. y f

riwssntt, or `Pou@nanarsIn` rinviil Yonx, AssI'GNoB. "ro TRUssELL `iiifinu'raofimnrne COMPANY, 0F rooenxniirsin, NEW YORK,

NEW YORK.

A CORPORATION or 'COVER FOB LOOSE-LEAF VIBOOKS.

Serial No. 247,298;

any 2 suitable fastening y `Such fastening dethrough the/cover back.y

vices are commonly made in tlieform of ears turned up from. the outer metal ing through slits iiifthe book back and clinched down so as to embrace the inner metal plate. In Fig. 3 such ears are shown plate pass at 12,15, being punched 'outwfroin the plate so as'to leave openings or slotso, a.

According `to the presentr invention the slots @,a which are necessarily formed when the ears 12,1; are struck up from themetal of the outer plate B are utilized as the means for applying projecting cushions D,y D of suitably soft material rwhich pass kthrough these slots and project beyond the outer surface' of the back plate, r-liese kcushions D, D. may be made of leather, rubber or any1-suitably soft material. They may be either integral with thebook back or distinct therefrom, as may seem most desii'-, able in any given instance. ,1 f

" -Whenthe cover A is made ofleather or of artiiicialfleather or of any suitably flexible material, the cushions D, D? maybe formed integrally withtlie coverback's shown for example, in Figs. l, 2 and 4. In this conas shown in Fig. 1.-

' struction the leather opposite the slots a, a is crimped or corrugated so as to thrust it outwarclly through these slots, as best shown in Fig. 4. This may be best accomplished by inserting a filling piece d on the back of the .leather opposite each slot a, these filling pieces being shown in section in Figs. 2 and 4. They suitable material. The leather may be forced through' the slots to form the projecting cushions D by subjecting it to pressure when either wet or dry, and the fillingpieces d may be applied at that time or subsequently, as preferred. In assembling the parts the outer and inner plates .B and D are to be pressed together tightly by any suitable clamping means, and the ears or tongues b, I) turned from the position shown in Fig. 3 to their downturned or clinched position, as shown in Fig. 2, whereby to hold thev plates clamped tightly together. f

A suitable alternative construction is to form the cushions cover, in Fig. 10, where the cushion is shown as molded with a rounded contour and surrounded by thin flange e for facilitating as shown for example, in perspective` D separately from the its clamping in place. 1With this construction it is only necessary to push the cushions through the slots a, a of the back plate from its inner side, leaving their flanges e lying against the inner side of the back plate, whereupon the back plate` andl inner plate are clamped together' by turning down the ears Z2 in the manner already described. This results in the construction shown in F ig. 6, which is shown in transverselsection in Fig. 8. This construction leaves a spacek between the plate B and cover back, as indicated in Fig. 6. Instead of this, the back plate may be bent inwardly sok as to lie close against the cover back except Where it coincides with the flanges e, this construction being shown in Fig. 7.

The cover A may be of leather or of fabrikoid or other form o-f articial leather or 0f any suitable fabric, and may he of one single piece-or'of tivo or more plies, or may be built up by the use of stiiiening boards for the cover sides covered by the external fabric, as is the common construetionin bookbinding'; or any other construction of the cover including its back Vand sides may be used, this feature forming no part ofthe present invention. The ,cover requires no treatment to adapt it to the present invention except to forno its back With slits j", f, as shown in Fig. 5, which correspond in location with the ears b, Z).

It Will be understood that the cushions or padsfD, D may be provided in anyy desired positions `on the book back by punching correspondinglypositioned slots a, a in the back plate These are shown as confined plate of to the top and bottom portions of the back plate but they may be located Wherever desired. j

My invention provides an inexpensive construction ivhereby loose-leaf books or other binders inay be Inade With an outer back metal Without its use beingy liable to scratch or notheiwvise injure ya desk or other hard Vsurface on which the book may be used. p n

The construction inay be varied according to circumstances or special requirements, the invention not being limited to the precise construction set forth. v

l claiin as my invention:

l. A book cover having outer and inner back plates clamped together, the outer plate formed with slots and cushioning portions projecting through such slots.

2. A book cover having outer and inner back plates, the outer plate punched with slots and the metal struck up therefrom to form ears which pass through the cover back and are clinched down against the inner plate, and cushions projecting through Such slots.

8. A book cover according to claim l, thel cushions being separate from the book'back and projecting through said slots. y

L A cover according yto claiin l, the cushions having projecting portions and thin flanges, the projectingk portions `entered through the slots and the. flanges confined by the back plate. Y f

ln Witness whereof, I have hereunto signed my uaine.

`CLARENCE D. TRUSSELL, v 

